Water-motor.



PATENTED JUNE 25, 1907. J. P. & H. P. SHEVLIN.

WATER MOTOR.

APPLIOATION FILED 00122. 1906.

2 SHEETS-SHEET 1.

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" 2 SHEETS-SHEET 2.

v PATENTED JUNE 25, 1907. J. 1% & H. P. SHEVLIN.

WATER MOTOR.

APPLIGATION FILED OUT-2, 1906.

' QM 7% $44k- JOSEPH P. SHEVLIN AND HENRY P. SHEVLIN, OF DENVERCOLORADO.

WATER-MOTOR.

Specification of Letters Patent.

Patented June 25, 1907'.

Application filed October 2, 1906. Serial No. 337,077.

To all whom, it may concern.-

Be it known that we, JosEPH P. SHEVLIN and HENRY P. SHEVLIN, citizens of the United States of America, residing at the city and county of Denver and State of Colorado, have invented a new and useful Water-Motor, of which the following is a specification.

Our invention relates to improvements in water motors, and the objects of our invention are: First, to provide an automatic operating water motor. And second, to provide a simple, durable, and economically operating water motor, that is adapted to be attached to the water pressure of city water works, and that is adapted to be used as a motor for various purposes. We attain these objects by the mechanism illustrated in the accompanying drawings, in which:

Figure 1, is a plan view of my improved water motor. Fig. 2, is a vertical, longitudinal, sectional view of the same. Fig. 3, is a transverse, vertical, sectional view on the line 33 of Fig. 2. Fig. 4, is an elevation of the piston, one of the end members of which is removed to show the interior construction. Fig. 5, is a plan view of the piston, and parts connected therewith. And Fig. 6, is a fragmental sectional view, showing the position of the valves and supporting sleeves, when their projecting pins contact with the cylinder heads.

Similar letters of reference refer to similar parts throughout the several views.

Referring to the drawings: The numeral 1, designates the water cylinder, and the nu meral 2 designates the valve cylinder of my improved water motor. The valve cylinder is a tubular cylinder provided with suitable cylinder heads 3 and 4, from which feet 5, depend, that are adapted to be secured to a floor or bench or other suitable supporting foundation. These cylinder heads are provided with hubs, and are secured to the cylinder by bolts 5A, which extend from one cylinder head to the other along the outside of the cylinder. The valve cylinder is provided with a piston head 6, which has piston rods 7 and 8 projecting from the opposite sides of it, which project through hubs of the cylinder heads. Both of these piston rods are hollow and the piston head is also hollow, and is constructed as follows: The piston is made in two parts 9 and 10, and the part 9 consists ,of a disk portion having an integral ring of slightly smaller diameter th an the disk portion which projects from the opposite side from its piston rod 7; the other part 10 of the piston consists of a disk which is secured against the outer edge of the ring portion of the part 9, by bolts 11, which extend through both disk portions. The ring portion is made slightly smaller than the two disk portions to make a recess seat for a pack ing ring 12. The interior of the ring portion of the piston forms a hollow chamber, in which I place a valve supporting sleeve 13, from each side of the opposite ends of which pins 14 project slidably through and beyond apertures formed in the opposite disks of the piston heads, so as to strike the opposite cylinder heads as the piston reciprocates within the cylinder, for a purpose to be hereinafter explained. The sleeve 13, has a central bore in which a plug valve 15 is reciprocally mounted, and the opposite ends of this valve stem are tapered as shown, thus forming a double-ended valve which controls the inlet ports in the ends of the piston. These inlet ports 16 and 17 are formed with valve seats within the hollow piston head, against one or the other of which the valve 15 is always seated by the pressure of the water, the valve having a movement independent of the reciprocal movement of the sleeve 13. The plug valve has a pin 25, which projects from each end of it, through the ports 16 and 17, and this pin is of slightly less length than the pins 14, and is adapted to contact with the cylinder heads 3 and 4, as the piston reciprocates in order to unseat the valve 15, alternately from the ports 16 and 17.

At diametrically opposite points on the piston disks from the inlet ports 16 and 17, are exhaust ports 18 and 19, which form a communication between the cylinder and the interior of the piston, and these ports are controlled by a double-ended plug valve 20, comprising a stem 21, having a plug valve at each end on the outside of the piston. The stem 21, extends through the ports 18 and 19, and is of much less diameter than the said ports. The'outside entrances of these ports are formed with valve seats to receive the two tapering plug valves. This stem is enough longer than the thickness of the piston head to allow the valves a reciprocative movement to and away from their seats of suificient distance to fully open the ports, and the valves are reciprocally mounted in sleeves 22 and 23, which are connected by pins 24, which extend through them and through the piston head. These pins have a IIO sliding movement through the piston, and as the piston approaches either end of the cylinder, they will contact with the cylinder head, causing the sleeve adjacent to said head to move back against the piston, and around the adjacent exhaust port, while the sleeve at the opposite ends of the pins is moved away from the end of the piston, and the adjacent exhaust port, the valve 20 be ing thrown just after the sleeve is shifted, as will be more fully described hereinafter.

The piston rods are hollow tubes, and the piston 7 extends from the disk 9, through a stuffing box 26, formed in the hub of the cylinder head 3, in which a gland 27 is threaded, the outer end of which is knurled or serrated to be grasped by a suitable pipe wrench or by the fingers of an operator to tighten or loosen it in the packing chamber of the head. The piston extends through this gland into the water inlet chamber 1, which 'is formed of a piece of tubing that is threaded to the outside of the hub of the cylinder head 3. The opposite end of this tube is closed by a plug 28. A water inlet nipple 29 is connected to the water inlet chamber, and its outer end is provided with a part of a hose or pipe coupling or union 30, which enables it to be connected to a hose or pipe, which leads to a city or other water supply pipe. This water inlet chamber is made long enough to receive the piston rod 7, when the piston head is at the end of its stroke against the cylinder head 3, and the piston rod 7 is of such a length that its end will project just through the gland in the water chamber when the piston head is at the opposite end of its stroke against the opposite cylinder head 4. The other piston rod 8 extends from the disk 10 of the piston head through the cylinder head 4, and a packing chamber 31 is formed in its hub, to which a gland 32 is threaded, the outer end of which is serrated or knurled to be turned by the fingers of an operator or by a suitable wrench, and this piston is made long enough to still extend beyond this gland when the piston head is at the opposite end of its stroke from the cylinder head 4. The piston head is provided with a diaphragm 33, which is cast integral with the disk 9, and extends across and bears against the inside of the disk 10, thus separating the axial inlet and outlet of the piston rods in the piston head from each other, and forming in the piston head two independent compartments 34 and 35. The compartment 35 connects the axial aperture inlet of the piston 7, with the cylinders water inlet and valve, and the other compartment 34 receives the exhaust water from the opposite ends of the cylinder through the ports 18 and 19, and the water flows from this chamber through the piston rod 8, and out of its opposite end, which is open, and is arranged to be connected to a water discharge pipe or hose, that leads the waste and out through the piston rod 8.

water away from the motor. The end of the piston rod 8, is also threaded to allow it to be connected to a driving shaft of any machine it is desired to operate by the motor.

The operation of our improved water motor is as follows: The motors water inlet nipple coupling is connected. to a water supply pipe of the city water supply system of the house, store, shop, or factory in which the motor is to be used, and the water under pressure, which may vary from about twenty to a hundred pounds pressure to the square inch, flows into the water chamber and fills it full, and also flows into the end of the piston 7, through which it flows to the compartment 35 in the piston head, from which it flows through the outlet valves and ports into the opposite ends of the cylinder in alter nate order. The double-ended plug valve 15, within the reciprocable valve sleeve 13, is always seated either upon one or the other of its seats, and the valve sleeve is also at the same time against that side of the chamber 35 of the piston, upon which the valve is seated. Now assuming that the piston has just reached the limit of its stroke at the inlet end of the cylinder, the pins 24 have struck the cylinder head 3, moving the sleeve 22 against the piston and around the exhaust port 18, cutting off the exhaust water through that port. Immediately thereafter, the projecting end. of the stem 21, strikes the head 3, and moves the valve far enough to uncover the port 19. Simultaneously with the contact of the pins 24, with the cylinder head 3, the pins 14 of the sleeve 13, contact with the head 3, and move the said sleeve against the disk 10, of the piston, cutting off the live water from inlet port 17, and at the same instant that the pin 21 of the double valve 20, contacts with the head 3, the pin 25 of valve 15, contacts with the head, and moves the valve away from the port 16. The live water then flows from piston rod 7, into chamber 35, of the piston, and through the port 16 to the cylinder between the piston, and the cylinder head 3, when its pressure will instantly seat the valve 15, upon the port 17, and one end of the valve 20, upon the port 18, the other end of the valve 20 being off the port 19, and the sleeve 23, in position' to let the exhaust water pass through the said port. Thus, as the live water enters rear of the piston, the piston will be moved forward, and the exhaust water forward of the piston, will pass through the port 19, into the chamber 34, When the piston reaches the opposite end of the cylinder, the pins 14, 21, 24, and 25, will contact with the cylinder head 4, reversing the valves and sleeves, so as to admit the live water through port 17 forward of the piston, and permit the exhaust water to pass through port 18, and out through the piston other manufacturing establishments.

Having described our invention, what we claim as new and desire to secure by Letters Patent is:

1. In a water motor, a valve cylinder, having cylinder heads at its opposite ends, a hollow piston rod in said cylinder, a hollow piston connected to said piston rod, an automatic water controlled inlet valve in said piston head arranged to discharge water into the opposite ends of said cylinder, a reciprocating sleeve surrounding said valve, pins on the opposite ends of said sleeve adapted to engage the opposite cylinder heads of said cylinder, and a pair of exhaust water ports in the opposite sides of said hollow piston, having valve seats in their outer ends, valves mounted on the opposite ends of a single valve stem arranged to extend through said piston head, said valves being arranged on the opposite sides of said piston head and adapted to control said valve seats, and sleeves surrounding said valves adapted to be moved by engagement with said cylinder heads to control said valve ports and arranged to exhaust the water from the opposite ends of said cylinder.

' 2. In a water motor, a cylinder having cylinder heads, a hollow piston head in said water cylinder divided into two compartments, a reciprocating valve sleeve mounted in one of said compartments in'said hollow cylinder head, having pins that project slidably through said piston head, and are adapted to engage said cylinder heads, valve ports through the opposite ends of said piston head in line with said sleeve, a double-ended valve in said sleeve, exhaust ports in said piston head, and suitable automatic water exhaust valves for alternately opening and closing said ports.

3. In a Water motor, the combination with the cylinder and cylinder heads, of the piston-head having two compartments in it, a hollow piston rod on each side of said piston head, extending operatively through said cylinder heads, one of which forms a water inlet, while the other forms an exhaust water outlet, said water inlet piston rod being connected to one of said compartments of said piston head, and said exhaust water piston rod being connected to the other compartment of said piston head, water ports leading from said water inlet compartment through the opposite sides of said piston head, a double-ended valve arranged to open said ports in alternate order, a movable sleeve supportmg said valve and provided with pins pro ecting in opposite directions throughsaid piston-head and arranged to contact with said cylinder heads at the opposite ends of the pistons strokes and reverse said water inlet valve, a water inlet chamber surrounding said water inlet piston and secured to the adjacent cylinder head, and valve-controlled ports for permitting the escape of the exhaust water.

4.- In a water motor, a headed cylinder, a

, piston within said cylinder, provided with two interior compartments separated by a partition, having ports which communicate with the cylinder, double-acting valves for controlling the ports in the compartment, an inlet communicating with one compartment, an outlet communicating with the other compartment, and longitudinally movable sleeves for supporting said valves.

5. In a water motor, a headed cylinder, a piston in said cylinder having two separate compartments, having ports communicating i with the cylinder, a tubular piston rod secured to one end of the piston in communication with one of its compartments, and form ing a water inlet, a longitudinally movable plug valve in said compartment for control ling its ports, and alongitudinally movable sleeve for supporting said valve, a tubular piston forming an exhaust for the other compartment, a valve in said compartment for controlling its ports, and a longitudinally removable sleeve for supporting the valve, and a cylinder surrounding said inlet tube, and provided with an inlet.

6. In a water motor, a cylinder having cyl inder heads, a hollow piston head in said water cylinder divided into two compartments, means including a tubular member in one end of said cylinder and a tube on the ad jacent end of said piston slidably mounted in said cylinder tube for admitting water to said piston, and an exhaust tube connected to the opposite side of said piston for supplying and exhausting water to said cylinder and piston, a reciprocating valve sleeve mounted in one of said compartments in said hollow-cylinder head, having pins that project slidably through said piston head, and are adapted to engage said cylinder heads, valve ports through the opposite ends of said piston head in line with said sleeve, a double-ended valve in said sleeve, exhaust ports in said piston head, having seats at their outside ends, a valve stem extending loosely through said valve ports, a valve on each of the opposite ends of said valve stem adapted to fit said valve seat and movable sleeves slidably surrounding said valves on opposite sides of said piston, provided with pins adapted to engage said cylinder heads and move said sleeve to open and close said ports.

7. In a Water motor, the combination with the cylinder and cylinder heads, of the pistonhead having two compartments in it, a hollow piston rod on each side of said piston head, extending operatively through said cylinder heads, one of which forms a water inlet, while the other forms an exhaust water outlet, said water inlet piston rod being connected to one of said compartments of said piston head, and said exhaust water piston rod being connected to the other compartment of said piston head, water ports leading from said water inlet compartment through the opposite sides of said piston head, a double-ended valve arranged to open said ports in alternate order, a movable sleeve supporting said valve and provided with pins projecting in opposite directions through said piston-head and arranged to contact with said cylinder heads at the opposite ends of the pistons strokes and reverse said water inlet valve, a water inlet chamber surrounding said water inlet piston rod and secured to the adjacent cylinder head, and exhaust water ports through the opposite ends of said piston, a valve stem extending loosely through said ports, a valve at each end of said valve stem adapted to control said ports, sliding pins extending through said piston, and sleeves mounted on the opposite ends of said pins and surrounding said valves and adapted to be moved by the engagement of said pins with said cylinder heads to open and close said ports in conjunction with said double ended valve.

8. In a water motor, a cylinder having ends, a reciprocating piston in said cylinder having water inlet and outlet ports, a doubleended valve arranged to control said outlet ports, and a pair of sleeves arranged to move in unison, each sleeve surrounding one end of said valve loosely and adapted to move reciprocally over said valve, said sleeves and valves being arranged to engage the ends of said cylinder at the ends of said pistons reciprocal stroke means including a valve within said piston for controlling said inlet ports and means including oppositely extending hollow piston rods attached to opposite sides of said piston for conveying pressure fluid to and from said piston.

9. In a water motor, the combination of the cylinder, provided with cylinder heads, the hollow piston provided with water inlet and outlet ports extending axially through said piston, an oblique partition in said piston between said inlet and outlet ports and the hollow water inlet and exhaust piston rods, with a valve within said hollow piston.

at one side of said partition of less length than the space in said piston arranged to control said inlet ports, and provided with projecting-pins at each end extending slidably through the inlet ports in the opposite sides of said piston in position to strike said cylinder heads, and move said valve axially in said piston, and a sleeve in said piston head of less length than the space in said piston arranged to surround loosely said valve and provided with projections on its opposite ends extending slidably through said piston, and of enough greater length than the pins of said valve to strike said cylinder heads before said valve pins and a valve arranged to control said outlet ports on the opposite side of said partition.

10. In a water motor adapted to be operated by water pressure, a cylinder, a reciprocating piston in said cylinder, having water inlet and outlet passages, reci rocating valves arranged to strike the en s of said cylinder at the ends of said pistons reciprocal strokes, and reciprocal sleeves surrounding said valves and arranged to engage the ends of said cylinder in advance of the engagement therewith of said valves, whereby said piston is actuated and its movement is automatically reversed in said cylinder by said water pressure co-operating with said sleeves.

In testimony whereof we ailix our signatures in presence of two witnesses JOSEPH P. SHEVLIN. HENRY P. SHEVLIN.

Witnesses G. SARGENT ELLIOTT, ADELLA M. FowLE. 

